fix build script sample to work

mrk-srv-build.sh

@@ -6,6 +6,9 @@ cd "$1"
 rm -f *.mkb || true
 rm -rf Marrakesh || true
 
+ls
+mrk extract *.mks
+
 export CC=gcc
 export CFLAGS="-O3 -ffast-math"
 export PKG_CONFIG_PATH="/usr/local/lib/pkgconfig"
@@ -14,21 +17,24 @@ export NAME=`grep "^PROJ:" Marrakesh.mrk | tail -1 | sed -e 's/PROJ://g' | sed -
 ## this is a sample - you need to do this N times, once per arch
 export MRKARCH="x86_64"
 export MRKOS="linux"
-mrk extract *.mks
 mrk build
 mrk bin
 export D="$2"/"$MRKOS-$MRKARCH"
 mkdir -p "$D" || true
 cp *.mkb "$D"
+pushd "$D"
 rm -f "$D"/"$NAME" || true
 ln -sf *.mkb "$D"/"$NAME"
+popd
 
 ## # copy src to right place
 export D="$2"/"src"
 mkdir -p "$D" || true
 cp *.mks "$D"
+pushd "$D"
 rm -f "$D"/"$NAME" || true
 ln -sf *.mkb "$D"/"$NAME"
+popd
 
 cd /tmp
 rm -rf "$1"